these 2 derivations will be built:
  /nix/store/zz8icnlj7jw352104imvrcvwaalkpjdx-letta-code-src-with-lock.drv
  /nix/store/2a0fvfmfa8ihkasa35bv3kfbycx5qj4c-letta-code-0.31.6.drv